DMRC Electrical Engineering Paper-1 2016
For the following questions answer them individually
A 3-phase delta connected squirrel cage induction motor when started with a DOL starter has a starting torque of 600 NM. Its starting torque when star delta starter is used:
In case of a ‘High Voltage DC’ transmission, how many minimum conductors are required?
In order to switch-off and EHV circuit for maintenance, the following sequence is adopted:
For the circuit given in the fig, the thevenis’s voltage and resistance as seen at AB are represented by:
A 10 Ω resistor is connected in parallel with a 15Ω resistor and the combination in series with a 12 Ω resistor. The equivalent resistance of the circuit is:
A nickel coil has a resistance of 13 Ω at 50°C. If the temperature coefficient of resistance at 0°C is 0.006/°C, the resistance at 0°C is:
